<template>
<div class="login">
    <section class="form_container">
        <div class="manage_tip">
            <span class="title">后台管理系统</span>
            <el-form :model="loginUser" :rules="rules" ref="loginForm" label-width="80px" class="loginForm">
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="loginUser.email" placeholder="请输入邮箱"></el-input>
                </el-form-item>
                <el-form-item label="密码" prop="password">
                    <el-input type="password" v-model="loginUser.password" placeholder="请输入密码"></el-input>
                </el-form-item>
                <el-form-item>
                    <el-button type="primary" class="submit_btn" @click="submitForm('loginForm')">登录</el-button>
                </el-form-item>
                <div class="tiparea">还没有账号<router-link to="/register">注册</router-link></div>                                                          
            </el-form>
        </div>
    </section>
</div>
</template>

<script>
import jwt_code from 'jwt-decode'

export default {
    name: 'login',
    data () {
        return {
            loginUser: {
                email: '',
                password: ''
            },
            rules: {
                email: [
                    {
                        required: true, type: 'email', message: '邮箱格式不正确', trigger: 'blur'
                    }
                ],
                password: [
                    {
                        required: true, message: '密码不能为空', trigger: 'blur'
                    },
                    {
                        min: 6, max: 20, message: '密码长度在6~20个之间'
                    }
                ]
            }
        }
    },
    methods: {
        submitForm(formName) {
            this.$refs[formName].validate(valid => {
                console.log(valid)
                if (valid) {
                    
                    this.$axios.post('/api/login', this.loginUser).then(res => {
                        console.log(res);
                        const { token } = res.data
                        // 存储token
                        localStorage.setItem('token', token)
                        // 解析token
                        decode = jwt_code(code)
                        this.$store.dispatch('setAuth', this.isEmpty(decode))
                        this.$store.dispatch('setUser', decode)
                        this.$router.push('/index')
                    })
                } else{
                    console.log(error)
                    return false
                }
            })
        },
        isEmpty (value) {
            return (
                value === null ||
                value === undefined ||
                (typeof value === 'object' && Object.keys(value).length === 0) ||
                (typeof value === "string" && value.trim().length === 0)
            );
        }
    }
}
</script>
<style scoped>
.login {
  position: relative;
  width: 100%;
  height: 100%;
  background: url(../assets/bg.jpg) no-repeat center center;
  background-size: 100% 100%;
}
.form_container {
  width: 370px;
  height: 210px;
  position: absolute;
  top: 20%;
  left: 34%;
  padding: 25px;
  border-radius: 5px;
  text-align: center;
}
.form_container .manage_tip .title {
  font-family: "Microsoft YaHei";
  font-weight: bold;
  font-size: 26px;
  color: #fff;
}
.loginForm {
  margin-top: 20px;
  background-color: #fff;
  padding: 20px 40px 20px 20px;
  border-radius: 5px;
  box-shadow: 0px 5px 10px #cccc;
}

.submit_btn {
  width: 100%;
}
.tiparea {
  text-align: right;
  font-size: 12px;
  color: #333;
}
.tiparea p a {
  color: #409eff;
}
</style>